P1341 - Multiple Cylinder Misfire With Fuel Cut-off

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P1341 Possible Causes

  • Faulty Spark Plug
  • Faulty Ignition Coil
  • Intake vacuum leak
  • Faulty Camshaft Position Sensor
  • Ignition Coil harness is open or shorted
  • Ignition Coil circuit poor electrical connection

First diagnose P1341 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P1341 code

    Labor: 1.0

    The cost of diagnosing the P1341 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1341 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1341 Meaning

As part of the CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and the severity of the misfire event and whether it is emissions relevant or catalyst damaging. In order to accomplish these tasks, the control module monitors the crankshaft for acceleration losses during firing segments of each cylinder based on firing order.
The misfire/engine roughness calculation is derived from the differences in the period duration (T) of individual increment gear segments. Each segment period consists of an angular range of 120° crank angle that starts 78° before Top Dead Center (TDC).
If the expected period duration is greater than the permissible value a misfire fault for the particular cylinder is stored in the fault memory of the ECM. Depending on the level of misfire rate measured the control unit will illuminate the Service Engine Soon light, may cutoff fuel to the particular cylinder and may switch lambda operation to open-loop. All misfire faults are weighted to determine if the misfire is emissions relevant or catalyst damaging.
OBDII Code P1341 - Multiple Cylinder Misfire With Fuel Cut-off - Engine-Codes.com

P1341 More Information

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